Johnson, a running back, played for Butler Community College in Kansas, where he won two national championships and the NJCAA Player of the Year award during his two-year career at the school from 1998-99.

Johnson then transferred to Auburn in 2000, where he won the SEC Offensive Player of the Year honors in his lone season at the school. His 1,567 rushing yards that season rank behind only Tre Mason and Bo Jackson for most in a single season in Auburn history.

Johnson was taken in the fourth round of the 2001 NFL Draft and played eight seasons in the NFL, the first seven of them with the Cincinnati Bengals. He gained more than 1,300 yards in three straight seasons from 2004-06.

Walker, a defensive lineman, played for Hinds Community College in Mississippi for two seasons from 1991-92 before transferring to Auburn in 1993. He anchored the Tigers' defensive front during the team's undefeated 1993 season (in which Auburn was ineligible for a bowl due to NCAA probation) and its one-loss campaign in 1994.

In the NFL, Walker played 11 years with the Houston/Tennessee Oilers, Jacksonville Jaguars and Houston Texans, with his final season coming in 2005.

Also inducted in the 2016 NJCAA were former Butler Community College coach John Anselmo and former Nassau (New York) Community College Troy Morrell.